Pressure-generator.



G. F. JONTZ.

PRESSURE GENERATOR.

APPLICATION mtu |AN.19.|917.

1,249,767. Patented De.11,1917.

2 SHEETS-SHEET G.F.10NTZ. PRESSURE GENERATOR.

APPLICATION FILED JAN. I9. 19H.

1 ,249,716'7. Patented Deo. 11,1917.

2 sains-SHEET 2. 50

@lg/[730m lll Sti

NlTllD STATES PATENT OFFICE.,

GUY JOIQTZ, 0F MOLINE, lQIlLINQIES.

reassess-enneagram LSpecit-fication of Letters `latend.

Patenten;nee11,ieir

Application led January 19, 1917. SeralN'o. illlat.

.To all 'whom t may concern Beitknown that` l, GUY l?. Jorrrz, a citinen of the United `States, and a resident of ldolineylttock lsland county, and `State ot li'llin'ois, haveinvented certainll'lew anduse :tui lniproveinents in Pressure-(lenerators, oi which the :following isdeclared to he a full, clear, and exact"description0 rlChis invention relates topressure generators, and its prirnary object is to provide` an apparatuswhereby a combustible lgaseous :mixture may loe compressed Vand exploded whileunder compression,`the exploded 1niX ture stored in a reservoir and mixed with` a jet of water or steam, whereby a hot, pown erlul charge is obtained which inay he used tor driving slide valveengines or turbine engines, tools or other machines. `Another object is to provide such' an apparatus with a vacuuni acket aronndthe reservoir, wherehy. the heat obtained during explosion may he eltectively reta-ined. llVith `these and other-objects and advantages in View, this invention consists in the `several novel liea tures hereinafter fully set forth and claimed.

The `invention is clearlyillustrated in the acconipan'ying1 drawings, in which:

`lfigure l, is a diagrammatic view of an apparatus showing, in side elevation, a pressure generator embodying a simple l'orin of the present invention; in side elevation, a

acuuin pump, and in end elevation, a turhinc engine whichis driven `hy thegenerator; Fig. 2, is a detail verticalfsection taken on the line 2 2 of Fig. l; andv Fig. 3, is a vertical, -longitudinal section through the pressure generator.

Briefly stated, the pressure generator coinprises a combustion chaniher' in `which a gaseous mixture is compressed by means of one or more pistons,` andtthecornhustihle mixture ignited at the nooinent oit highest coinpressionf-that is to say, when the cranks are on'dead center; a reservoirinto which the ignited combustible mixture ^is* forced, andif desired a vacuum jacket surrounding the reservoir, and ineens `for maintaining a partialvacuuniin saidujacket, and a `steam or water jetting nozzle which discharges into the reservoir.

'Referring more specilically to the drawingsfthe reference numeral 5, designatesthe generator as a whole, G, a turbine engine, "which for the purpose of illustration has heen shown on a very sinall scale,`and` 7 a sirnple vacuuni pump.

`The generator has a cylindery 8,l which `is lnountedpupon. a suitable hase orcrank case 9, and'reciprocating-in said cylinder 8,is a piston l0, which for convenience l shall terni ashort stroke *i piston, and reciprocating in said shortstrokepiston is a second piston lll, which :for convenience l shallterin a t long stroke piston. Projecting out through slots 1Q, inithecylinder- S, are two oppositely disposed gudgeons 13, A upon which are secured two connecting rods: la, thelower ends oi which are secured to cranks l5, provided `upon a cranki shaft 16, journaled in the crank case 9. A connecting rod i7, isconnected to the long stroke piston 1l, ley awrist pin 1&3, journaled in hollowhosses 19, loi-ined upon the inner tace` of the piston ll, and said connectingrod 17, issecuredV at its lower' end upon a crank 20, that is pro vided upon the crankshaft 1.6. ltwillhe observed 'from lhigs, that thethrow otthe crank Q0, is rnuch greater than the throw ot the cranks l5; consequently the stroke .of the pistonl 1l, is correspondingly greater than the stroke et the piston `10. Fig. B, shows the pistons in `ulllinesi at the point where the lon gstroke piston has reached the lower limit of its travel, and the short piston l0, has reached` the f upper lirnit oit its tra-vel; that is, at the end `of the intake stroke and `beginning ot the compression stroke; said ligure also shows `the pistons at the very opposite ends of their limits of travel, namely, at the `end ot the compression` stroke and `begii'ining off the intake stroke. The shortstroke piston has a port inits head 22, which is closedhy a lcheck valve 2l, which opens outward troni thepiston, and the head 35, of theilong'stroke piston ll, is formed with a depressed portion 23, whiclrreceives lthe'steni` ofi the :check valve 21, whenever the pistons reach the position shown in the dottedilines in Fig. 3. rlhis arrangement is merely/tor the purpose of permittingltheheads of the pistons to eoineclose to each other when in the position shown in the dottedilines.

`'lhe cylinder head 2liof the cylinder 8, is secured to the cylinder'in any ydesirable manner and1 it has a portv 25, therethrough, which is closed by a check valve `2(3,Vwhi-ch is-held lupon .its seatuhy aspiring 27 interposed between a collar E28,A on the vnlvefsteni 29, and a t `bracket `30. The tension oliithe spring 27, should he sul'iicient to preventfthe lifting? of the valve 126, uduringthei compression strokes of the pistons. Said port 25, opens to a reservoir 31, which may be secured to the cylinder head, and said reservoir 3l, may be provided with a vacuum jacket 32, .whereby the chamber of the reservoir may be isolated'from the outer atmosphere. A pipe 38, connects the vacuum jacket With the vacuum cylinder end of the pump. 7, and said pump may be driven by any suitable means, although it may be connected to the reservoir 3l, by a pipe 34, and may be driven by the compressed gases stored in the reservoir. A. nozzle 5l, connected with a source of Water or steam supply opens to and discharges into the reser` voir, and the hot gases therein superheat the steam, whereby the pressure in the reservoir is increased.

In the operation of the generator, the combustible charge is compressed in the space betiveen the cylinder head 24, and the top of the piston head 35, when the latter reaches the position shoivn in dotted lines in Fig. 3, and said part of the cylinder I shall designate as the combustion chamber 8G. A. spark plug 37, is shown as secured in the cylinder head, and it is arranged to ignite the compressed charge in the combustion end of the cylinder. Any suitable ignition means may be provided 'for operating the spark plug,vand .tor the purpose ot illustration, l. have shown a disk 38, upon the crank shaft, which disk has a Contact piece arranged to contact With a contact member 39,' once duringv each rotation of the shaft. rhe ordinary battery system may be employed for creating the spark in the spark plug. Obviously any of the Well known ignition systems, suitable for this purpose, may be en'iployed for operating the spark plug.

A gaseous mixture is supplied to the generator byy a pipe 40, which communicates with a` carbureter 4l, et any suitable construction, and said pipe 40, communicates With the interior of the short stroke cylinder through a port 42, (see Fig. 2) in the cylinder Wall S, and a vport 43, in the short stroke cylinder. Conveniently a check valve 44, opening toward the cylinder may be employed in the pipe 40.

rihe generator may be employed for dri ving slide valve engines, turbine engines, tools or other machines, and the turbine engine, or other driven machines shoivn at G, may be connected to the reservoir 31, by a pipe 45. A. safety valve 46, is preferably interposed in the pipe 45, to prevent the pressure in the reservoir trom becoming Jroo reat. The crank shaft et the generator the crank shaft and a shaft oli the turbine engine,A and for convenience l have shown the rcrank shaft and a shaft of the turbine engine connected by a belt 47, trained over pulleys 48, 49.

In starting the pressure generator, the crank shaft is lirst driven by suitable means until suliicient pressure is developed in the reservoir to drive the slide valve engine or turbine engine.

In the operation of the pressure generM ator, the crank shalt 1G, is driven by the turbine (i, or other driving means, and during caca cycle ot rotation ot said crank shaft, the short stroke piston is moved to the upper limit oi" its stroke, and the long stroke piston is moved to the loiver limit of its stroke; (see dotted lines in Fig. 2l) this is the suction or intake stroke ol' the pistons, and a gaseous, combustible mixture is taken through the earbureter and into the intake chamber between the piston. Up to this time, the crank sha'lit has been rotated through an arc of one hundred and eighty degrees; during the rotation ot said shaft through the remaining one hundred and eighty degrees of rotation to complete a cycle of operation, the short stroke piston is moved from its upper posi ion to the lower limit of its stroke, the inlet port thereby covered, and the long stroke piston is moved to the upper limit of its si roke; the gaseous mixture is thereby forced out past the eheek valve 21, in the short stroke piston, and is lorced into the compression ehamber Se, directlY above the short stroke piston head where it is ignited by the spark plug at the. instant the cranks are on dead center. The. result is that the hot, exploding charge is for ed past the check valve 2.6, in the head 24, of the cylinder 8, and is torced into the reservoir 3l, where it mixes with the Iiet olfY Water or steam coming in through the nozzle. 5l, thus raising the pressure. When sullicient pressure has been generated in the reservoir to drive the turbine engine or slide. valve engine, the valve in the l'eed pipe is opened. rlhereatter the turbine or slide` valve engine drives the pressure generator. It is to be understood that the vaeuum pump 7, is operated to maintain a partial vacuum in the vacuum jacket 3:2, thereby isolating the chamber of the reservoir Vtroni the outer atmosphere to prevent extravagant dissipation of heat developed in the storage (ank or reservoir 81.

From the above, it is readily apparent that a high pressure ol: hot gases may be. leveloped in the reservoir: that the. heat developed in said gases is prevented from 1..

rapid dissipation by the vacuum jacket and that increased pressure is obtained with the steam or Water jet.

lt is also to be understood that various changes and modifications ot the exact (ronstruction .is possible, without departing l'rom the spirit oli this invention. 'l desire, there.- fore, not to limit myself to the simple form of construction and arrangement oi" the parts shown and described, but intend in the all inserer liollowing claims to point ont all oiD the in* vention disclosed herein.

lt claim new and desire to secure by lhetters Patent:

l. ln a pressure generator, a combustion chamber, means dior compressing a gaseous mixture therein, comprising one piston reciprocating in said chamber, there being a valve controlled port between one side of said piston and said chamber, and a second piston reciprocating in the said iirst inentioned piston tor compressing the charge into the said combustion chamber, means '[or igniting the compressed gaseous mii;- ture, and a reservoir i'or receiving the ignited mixture, communicating with said combustion chamber.

2. ln a pressure generator, a combustion chamber', two pistons, one within the other, and moving in opposite directions ior comn pressing a gaseous mixture therein, means tor igniting the mixture, and a reservoir for receiving the ignited mixture, communicating with said combustion chamber.

ln a pressure generator, a combustion chamber, a short stroke piston reciprocating therein, and having a valve controlled passage leading to said combustion chamber, a long stroke piston. reciprocating in and cooperating with the first named piston to compress a charge :in said combustion chamber, piston reciprocating means, charge igniting means, and a reservoir communicating with said combustion chamber for receiving the ignited charge.

et. lin a pressure generator, a cylinder having a combustion chamber at one end, two oppositely moving pistons in said cylinder :tor compressing a gaseous charge into the combustion chamber, piston reciprocating means, ignition means it'or igniting the compressed charge and a reservoir communicating with said combustion chamber for re ceiving the ignited charge.

5. ln a pressure generator, a cylinder having a combustion chamber at one end, a short stroke piston and a long stroke piston reciprocating in said cylinder and arranged to torce a compressed gaseous charge into the combustion chamber, ignition means, and a reservoir communicating with said combustion chamber for receiving the ignited charge.

(i. ln a pressure generator, a cylinder having a combustion chamber, a short stroke piston reciprocatingv in said cylinder, and a long stroke piston reciprocating in said short stroke piston, said pistons moving in opposite directions, ignition means ior igniting the compressed charge in the combustion chamber, and a reservoir connnunicating with said combustion chamber for receiving the ignited charge.

7. ln a pressure generator, a cylinder hav ing a combustion chamber, a short stroke piston reciprocating in said cylinder, and a long stroke piston reciprocating in said short stroke piston, said pistons moving in opposite directions, ignition means tor igniting the compressed charge in the combustion chamber, a reservoir communicating with said combustion chamber iter receiving the ignited charge, and a steam 'jetting nozzle arranged to discharge into said reservoir.

8. it pressure generator, comlsn'ising a cylinder, a short strot-ie piston reciprocating therein, and having an ontwxu'dly opening check valve in its head, a long stroke piston reciprocating in said short stroke piston, said pistons moving in opposite directions, piston reciprocating means, ignition means, and a reservoir communicating with said cylinder there being a check valve between the cylinder and reservoir opening toward the reservoir.

9. ln a pressure generator, a cylinder haw ing a comlmstion chamber at one end, two pistons moving oppositely in said cylinder, tor coi'nprcssing a gaseous charge into the combustion chamber, one oi said pistons having a check valve in its head opening away from the interior oit the piston, pis ton reciprocating means, ignition means vfor igniting the compressed charge, and a reservoir communicating with said combustion chamber for receiving the ignited charge.

l0. In a pressure generator, a cylinder having a combustion chamber at one end, two oppositely moving pistons in the said cylinder lior compressing a gaseous charge into the combustion chamber, a crank shaft having short and hing stroke c anks termed thereon, connecting rods between said cranks and pistons, ignition means for igniting the compressed charge, and a reservoir coinmunicating with said combustion chamber for receiving the ignited charge.

l1. ln a pressure generator, a cylinder having a combustion chamber at one end, a reservoir comnninicating therewith, and having a check valve opening to the reservoir, two oppositely movingI pistons in said cylinder for compressing a gaseous charge into the combustion chamber, one of said pistons having a check valve in its head opening toward said combustion chamber, piston reciprocating means, and means for igniting the compressed charge.

Sonica of this patent may be obtained for five cents nach, by addressing the Gcmmissloner of Patents, Washington, l), G.

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